CHINA 1923 surcharged in red on first Peking printing 2 Cts on 3c blue-green, surcharge inverted error, deep bright color, characteristic centering to bottom, fresh with full original customary flat and streaky gum, h.r., double signed Champion, ex-Sir Percival David, Twyste (Chan 280a) (YT 179a, cat. Euro 175,000), (SG 361a). It is believed that there are less than twenty examples known of this error. According to contemporary reports (Theodore Sidall), on thirteen of these stamps exist and were acquired at Wanhsien, a small port about half way between Chungking and Ichang, in July, 1924, by Dr. A. Germain, the medical officer on the French gunboat "Balny." He applied two of the stamps to separate covers which he mailed to himself locally and sold ten mint examples to the French dealer Theodore Champion. Champion than sold a block of four and a single to M.D. Chow, two singles to Bush and one each to Hinds and Hawkins. One of the "Four Treasures of the Republic"